/*
 * Copyright 2010 Pierre Heinzerling, Uwe Janner, Patrick Wright
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.upp.publinksky.operations.util;

import com.sun.jersey.api.NotFoundException;
import com.upp.publinksky.dao.ThemeDAO;
import com.upp.publinksky.model.Theme;

import javax.jdo.PersistenceManager;

/**
 */
public class ThemeLookup {
    /**
     * Retrieves theme by id, throws NFE if not found.
     *
     * @param themeId the theme's id (key)
     * @param pm      active persistence manager
     * @return the theme (if found)
     * @throws NotFoundException if not found
     */
    public static Theme checkedGetTheme(final long themeId, final PersistenceManager pm)
            throws NotFoundException {
        try {
            return ThemeDAO.getThemeById(themeId, pm);
        } catch (Exception e) {
            throw new NotFoundException(String.format("theme(id = %d)", themeId));
        }
    }
}
